Pump head assembly



FIG. 1 is a perspective view of the pump head assembly according to the invention;

FIG. 2 is a top view of the pump head assembly as shown in FIG. 1;

FIG. 3 is a side view of the pump head assembly as shown in FIG. 1;

FIG. 4 is a front view of the pump head assembly as shown in FIG. 1;

FIG. 5 is a side view of the pump head assembly as shown in FIG. 1, shown from the side opposite that shown in FIG. 3;

FIG. 6 is a rear view of the pump head assembly as shown in FIG. 1; and,

FIG. 7 is a bottom view of the pump head assembly as shown in FIG. 1.

The broken lines in the drawing depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a pump head assembly, as shown and described. 